StefanJ007

Hello everyone, I just tried trading couple of stocks on Demo account and I closed my positions at 270$ profit. However total profit after closing was around 120$. I realised most went for some kind of commissions, but I don't know when are these applied and if they are fixed or relative to amount of positions. Does they apply every time I open and close certain position? Are these fixed to 15$ or they are bigger if my position is way bigger? I've attached report here Thanks in advance, All the best. S.